34521031 has 4 divisors (see below), whose sum is σ = 34555864. Its totient is φ = 34486200.

The previous prime is 34521029. The next prime is 34521061. The reversal of 34521031 is 13012543.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 34521031 - 2¹ = 34521029 is a prime.

It is a super-2 number, since 2×34521031² = 2383403162605922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34521001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15885 + ... + 17926.

It is an arithmetic number, because the mean of its divisors is an integer number (8638966).

Almost surely, 2^34521031 is an apocalyptic number.

34521031 is a deficient number, since it is larger than the sum of its proper divisors (34833).

34521031 is a wasteful number, since it uses less digits than its factorization.

34521031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34832.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 34521031 is about 5875.4600670926. The cubic root of 34521031 is about 325.6076395439.

Adding to 34521031 its reverse (13012543), we get a palindrome (47533574).

The spelling of 34521031 in words is "thirty-four million, five hundred twenty-one thousand, thirty-one".